686376864535 has 16 divisors (see below), whose sum is σ = 848793701952. Its totient is φ = 532500908800.

The previous prime is 686376864521. The next prime is 686376864541. The reversal of 686376864535 is 535468673686.

It is not a de Polignac number, because 686376864535 - 2³⁷ = 548937911063 is a prime.

It is a super-2 number, since 2×686376864535² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9990256 + ... + 10058725.

It is an arithmetic number, because the mean of its divisors is an integer number (53049606372).

Almost surely, 2^686376864535 is an apocalyptic number.

686376864535 is a deficient number, since it is larger than the sum of its proper divisors (162416837417).

686376864535 is a wasteful number, since it uses less digits than its factorization.

686376864535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20049194.

The product of its digits is 522547200, while the sum is 67.

The spelling of 686376864535 in words is "six hundred eighty-six billion, three hundred seventy-six million, eight hundred sixty-four thousand, five hundred thirty-five".